Please Help With PSPGBA V 1.1

I have 3 quick questions about gba emulation on my gbapsp v 1.1.

1. I have fw 3.5 will installing PSPGBA 1.1 brick or corrupt my psp?
2. Will pspgba 1.1 work on psp?
3. Are there any better gba emulators?

1.You have to downgrade to 1.5 to play homebrew using the Lumines exploit.
2.No, only 1.5, 3.xx OE.
3.PSPGBA is discontinued, you can use gpsp which is full speed, but you need the GBA BIOS.